植物叶子的气孔可以释放水汽,吸收外界气体进行光合作用,使得植物能够茁壮生长。在干旱时期,植物还会通过关闭叶子的气孔避免水分流失。除此之外,现在科学家发现植物叶子的气孔还可以阻止细菌入侵,但是也会陷进病原体的圈套当中。同细菌相比,真菌可以轻而易举地渗透到植物叶片 Stomata of plant leaves can release water vapor and absorb the outside air for photosynthesis, making the plant thrive. In drought periods, plants also prevent water loss by closing the leaves’ pores. In addition, scientists now find that stomata in plant leaves can also prevent bacterial invasion but can also trap pathogens. Compared with bacteria, fungi can easily penetrate into plant leaves